Subject: Re: Massive read/write performance problems with 3.0
To: Manuel Bouyer <bouyer@antioche.eu.org>
From: Tonnerre LOMBARD <tonnerre@bsdprojects.net>
List: port-amd64
Date: 05/13/2006 08:31:13
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Salut,

On Wed, May 10, 2006 at 12:02:21AM +0200, Tonnerre LOMBARD wrote:
> Salut,
>=20
> On Tue, May 09, 2006 at 11:55:43PM +0200, Tonnerre LOMBARD wrote:
> > Well, I figured that SATA write caching was disabled in the BIOS. I ena=
bled
> > it but now the thing won't boot up:
>=20
> Ok, this error doesn't seem to be directly related to the setting.
>=20
>  * SATA write cache enabled:
>    -> guaranteed fault on bootup
>  * SATA write cache disabled:
>    -> occasional fault on bootup
>=20
> At any rate, the problem always turns up when the DHCP offer is received
> it seems. Maybe it has something to do with writing the lease file.

I got at least a tiny fraction of a stack trace out of the problem:

Stopped in pid 241.1 (ifconfig) at netbsd:Xintr_legacy7+0x1b3: movq 0x50(%r=
sp), %r14
db{0}> bt
Xintr_legacy7() at netbsd:Xintr_legacy7+0x1b3
--- interrupt ---
0x29d:
db{0}>

Not overly useful though...

				Tonnerre

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